画像処理法によるポンプ水車羽根車内流れ計測

• 速水 洋

• 陳 徳新

• 高曽 徹

• 王 潤東

書誌事項

タイトル別名

• Flow in a Pump-Turbine Runner Analyzed by an Image Processing Technique.
• ガゾウ ショリホウ ニ ヨル ポンプ スイシャ ハネグルマナイ ナガレ ケイソ

抄録

Fluid flow in a small model of a Francis-type pump turbine was visualized by means of a tracer method and was imaged using a video camera rotating with the rotor. The relative velocity vectors of the fluid flow were analyzed from the video image using a digital image processing technique based on the correlation method. The flow pattern was discussed in relation to the characteristics of the pump turbine. At a zero incidence condition the reverse flow zone on the suction surface of the blade was much less than that at a shockless inlet condition. An unsteady flow pattern at a low flow rate was also demonstrated. The problems in the image processing technique and countermeasures such as image improvement and size selection of the correlation matrix were also discussed.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 59 (567), 3524-3528, 1993

  一般社団法人 日本機械学会

キーワード

• Tracer Method

詳細情報

• CRID: 1390282680872800256
• NII論文ID: 110002392289
• NII論文ID: 130004220963
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.59.3524
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 3849721
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3849721
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/59/567/59_567_3524/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可